What is left brain pain?

Headache is a common clinical symptom. It normally refers to pain confined to the upper part of the head, including the eyebrow arch, the upper edge of the helix and the line above the external occipital eminence. There are many causes of headache, which can be roughly divided into primary headache and secondary headache. Primary headache cannot be attributed to a specific cause, but can also be called idiopathic headache. Common headaches such as migraine, tension headache, etc. Secondary headache can be caused by various intracranial diseases such as cerebrovascular disease, intracranial infection, craniocerebral trauma, systemic diseases such as fever, internal environment disorder and psychoactive drug abuse.